'Took three washes to get this off!' Jessica Simpson jokes about her glam silver make-up for her sister Ashlee's 30th birthday bash

Jessica Simpson went all out for her sister's 30th birthday bash on Thursday night.

The 34-year-old singer, actress and fashion designer donned an elaborate makeup design made to look like a glamorous silver mask for Ashlee's 'Christmas in California' themed festivities.

Jessica offered up appreciation to her hair and makeup team, captioning an Instagram selfie, 'Thx @karanmitchellmua and @roqchop for some creative male@up and hair! Love y'all (sic)'.

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Snow Queen: Jessica Simpson donned an elaborate makeup design made to look like a glamorous silver mask for younger sister Ashlee's 'Christmas in California' 30th birthday bash festivities on Thursday night

Snow Queen: Jessica Simpson donned an elaborate makeup design made to look like a glamorous silver mask for younger sister Ashlee's 'Christmas in California' 30th birthday bash festivities on Thursday night

Long-lasting! The mother-of-two was spotted leaving the party with her beautiful design still in tact

Long-lasting! The mother-of-two was spotted leaving the party with her beautiful design still in tact

In another snap, Jessica posed again, admitting how tough it was to remove the beautiful facial artwork, stating, 'Not gonna lie... It took about 3 washes to get this fantastic mask off. See ya again tomorrow @karanmitchellmua'.

Earlier in the day the mother-of-two - looking like a beautiful Snow Queen with her silver Masquerade makeup - shared multiple birthday messages for her younger sibling.

'Ready to celebrate 30yrs of having the best sister on the planet! Happy Birthday @ashleesimpsonofficial', her touching tribute said.

The singer and former reality star added: 'Thank you for inspiring me everyday. I love you!!! #dirty30'

'Happy Birthday Ashlee! There is no one I believe in more than you,' she then wrote alongside an old photo of her little sister all glammed up for something special.

Clean up: Jessica also admitted how tough it was to remove the beautiful facial artwork, stating, 'Not gonna lie... It took about 3 washes to get this fantastic mask off. See ya again tomorrow @karanmitchellmua'

Clean up: Jessica also admitted how tough it was to remove the beautiful facial artwork, stating, 'Not gonna lie... It took about 3 washes to get this fantastic mask off. See ya again tomorrow @karanmitchellmua'

Appreciation to her glam squad: Jessica captioned a selfie, 'Thx @karanmitchellmua and @roqchop for some creative male@up and hair! Love y'all (sic)', thanking her team for the masquerade makeup

Appreciation to her glam squad: Jessica captioned a selfie, 'Thx @karanmitchellmua and @roqchop for some creative male@up and hair! Love y'all (sic)', thanking her team for the masquerade makeup

'Ready to celebrate 30yrs of having the best sister on the planet!' Jessica captioned this Instagram selfie before the birthday bash

'Ready to celebrate 30yrs of having the best sister on the planet!' Jessica captioned this Instagram selfie before the birthday bash

Newly married Ashlee partied it up winter style, with her loved ones sharing the evidence on their social media profiles.

The singer, whose birthday fell on Friday, October 3, decked herself out in a chic snow leopard coat and snug looking snow boots, in spite of the soaring temperatures on the West Coast.

Her long blonde tresses were worn down and wavy as she posed on the pretend - or perhaps real - snow in what appears to be somebody's yard. 

'Happy birthday baby': Ashlee's husband Evan Ross shared this photo of his new wife partying it up at her Christmas themed 30th birthday in Los Angeles

'Happy birthday baby': Ashlee's husband Evan Ross shared this photo of his new wife partying it up at her Christmas themed 30th birthday in Los Angeles

Birthday girl: Ashlee - donning a pleated maxi dress, fur coat and wavy blonde tresses - was spotted outside the party chatting with friends

Birthday girl: Ashlee - donning a pleated maxi dress, fur coat and wavy blonde tresses - was spotted outside the party chatting with friends

It's her party: She can sip if she wants to! Ashlee enjoyed a mug of something warm during the winter and Christmas-themed evening

It's her party: She can sip if she wants to! Ashlee enjoyed a mug of something warm during the winter and Christmas-themed evening

Ashlee's husband Evan Ross could be seen throwing himself into the shot in an animated fashion, clearly having a ball at his wife's party.

'Last night made it @ashleesimpsonofficial favorite holiday Christmas in California,' wrote the 26-year-old son of Diana Ross. 'It was a snowy one. Happy birthday baby.'

Ashlee's 30th birthday comes just one month after she married Evan Ross over Labor Day weekend at the Connecticut estate of his mother Diana Ross.

The 13-time Grammy winner officiated the bohemian nuptials and performed Endless Love at the reception.

'There is no one I believe in more than you': Big sister Jessica shared this image along with a touching tribute about being proud of her

'There is no one I believe in more than you': Big sister Jessica shared this image along with a touching tribute about being proud of her

Sisterly love: Jessica shared this sweet photo of she and her sister at Ashlee's engagement party in March

Sisterly love: Jessica shared this sweet photo of she and her sister at Ashlee's engagement party in March

 '[The] wedding went perfectly,' the 70-year-old pop diva told The Insider With Yahoo.

'We had a beautiful rainbow surrounding us, loving family and friends, great music, great speeches from caring friends, and joyful children dancing the night away... Wishing Evan and Ashlee congratulations. I want only love, happiness, joy for my son and his bride.'

The Hunger Games star and his bride honeymooned in Bali.

Tied the knot: Ashlee's 30th birthday comes one onth after marrying Evan Ross, whose mother is Diana Ross

Tied the knot: Ashlee's 30th birthday comes one onth after marrying Evan Ross, whose mother is Diana Ross

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